If a person can run 100 meters in 12 seconds, what is his speed in km/h?

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Question: If a person can run 100 meters in 12 seconds, what is his speed in km/h?

Options:

Correct Answer: 36 km/h

Solution:

Speed = Distance / Time = 100 m / 12 s = (100/12) * 18/5 = 30 km/h.

If a person can run 100 meters in 12 seconds, what is his speed in km/h?

If a person can run 100 meters in 12 seconds, what is his speed in km/h?

Step 1: Identify the distance the person runs, which is 100 meters.
Step 2: Identify the time it takes to run that distance, which is 12 seconds.
Step 3: Use the formula for speed, which is Speed = Distance / Time.
Step 4: Plug in the values: Speed = 100 meters / 12 seconds.
Step 5: Calculate the speed in meters per second: 100 / 12 = 8.33 m/s (approximately).
Step 6: Convert meters per second to kilometers per hour. To do this, multiply by 18/5.
Step 7: Calculate the speed in km/h: 8.33 m/s * (18/5) = 30 km/h (approximately).

Speed Calculation – Understanding how to calculate speed using the formula Speed = Distance / Time.
Unit Conversion – Converting meters per second to kilometers per hour using the conversion factor.